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Holmium Chunk

High Purity Ho Chunk
CAS 7440-60-0

Product Product Code Request Quote
(2N) 99% Holmium Chunk HO-M-02-CK Request Quote
(3N) 99.9% Holmium Chunk HO-M-03-CK Request Quote
(4N) 99.99% Holmium Chunk HO-M-04-CK Request Quote
(5N) 99.999% Holmium Chunk HO-M-05-CK Request Quote

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Ho 7440-60-0 24869411 23988 MFCD00011049 231-169-0 N/A [Ho] InChI=1S/Ho KJZYNXUDTRRSPN-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance Density Tensile Strength Melting Point Boiling Point Thermal Conductivity Electrical Resistivity Eletronegativity Specific Heat Heat of Vaporization Heat of Fusion MSDS
164.93 Silvery 8.795 gm/cc N/A 1474 °C 2695°C 0.162 W/cm/ K @ 298.2 K 87.0 microhm-cm @ 25°C 1.2 Paulings 0.0393 Cal/g/ K @ 25 °C 67 K-Cal/gm atom at 2695°C 4.10 Cal/gm moleSafety Data Sheet

High Purity ChunkAmerican Elements specializes in producing high purity Holmium Chunks are produced using crystallization, solid state and other ultra high purification processes such as sublimation. Standard Chunk pieces are amorphous uniform pieces ranging in size from 5-15 mm. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into granules, rod, bar or plate form, as well as other machined shapes and through other processes such as nanoparticles and in the form of solutions and organometallics. We also produce Holmium as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Holmium Bohr ModelHolmium Element SymbolHolmium (atomic symbol: Ho, atomic number: 67) is a Block F, Group 3, Period 6 element with an atomic radius of 164.93032. The number of electrons in each of Holmium's shells is [2, 8, 18, 29, 8, 2] and its electron configuration is [Xe] 4f11 6s2. The holmium atom has a radius of 176 pm and its Covalent radius is 192±7 pm. Holmium was first discovered by Marc Delafontaine in 1878. Elemental Holmium Picture In its elemental form, holmium has a silvery white appearance. It is relatively soft and malleable. It is stable in dry air at room temperature but rapidly oxidizes at elevated temperatures and in moist air. Holmium has unusual magnetic properties. Its name is derived from the Latin word Holmia meaning Stockholm. For more information on Holmium, including properties, satefy data, research, and American Elements' catalog of Holmium products, visit the Homium element page.


Holmium Chloride Holmium Acetylacetonate Holmium Powder Holmium Acetate Holmium Sputtering Target
Holmium Foil Holmium Oxide Holmium Pellets Holmium Metal Holmium Oxide Pellets
Holmium Telluride Holmium Rod Holmium Sulfate Holmium Nanoparticles Holmium Iodide
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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

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Recent Research & Development for Holmium

  • Empirical intensity parameters for the 4f .fwdarw. 4f absorption spectra of nine-coordinate neodymium(III) and holmium(III) complexes in aqueous solution. Eileen M. Stephens, Scott Davis, Michael F. Reid, F. S. Richardson. Inorg. Chem.
  • Low-temperature routes to new structures for yttrium, holmium, erbium, and thulium oxychlorides. Eduardo Garcia, John D. Corbett, Jeff E. Ford, William J. Vary. Inorg. Chem.
  • Solvent extraction of holmium and yttrium with bis(2-ethylhexyl)phosphoric acid. Kazuharu Yoshizuka, Yoshitsugu Sakamoto, Yoshinari Baba, Katsutoshi Inoue, Fumiyuki Nakashio. Ind. Eng. Chem. Res.
  • Structural properties of a holmium iron carbide interstitial compound, Ho2Fe17C3-x. Gabriele Bocelli, Gianluca Calestani, Fabrizio Leccabue, Bernard E. Watts, L. Jose Luis Sanchez. Chem. Mater.
  • Comparison of electric-dipole intensity parameters for a series of structurally related neodymium, holmium, and erbium complexes in aqueous solution. Theory and experiment. Mark T. Devlin, Eileen M. Stephens, F. S. Richardson. Inorg. Chem.
  • Separation of Carrier-Free Holmium-166 from Neutron-Irradiated Dysprosium Targets. Ekaterina Dadachova, Saed Mirzadeh, Richard M. Lambrecht, Eric L. Hetherington, F. F. Knapp Jr.. Anal. Chem.
  • Measurement and analysis of circular dichroism in the 4f-4f transitions of holmium(3+) in sodium tris(oxydiacetato)holmate(3-) bis(sodium perchlorate) hexahydrate. Diane M. Moran, F. S. Richardson. Inorg. Chem.
  • Superconductivity at 91 K in the magnetic oxide holmium barium copper oxide, HoBa2Cu3O6+x. C. Leigh, C. Porter, R. J. Thorn, Urs Geiser, A. Umezawa, Hau H. Wang, W. K. Kwok, Huey Chuen I. Kao, Marilyn R. Monaghan,. Inorg. Chem.
  • Specific sequestering agents for the actinides. 12. Synthetic and structural chemistry of gadolinium and holmium catecholates. Gwen E. Freeman, Kenneth N. Raymond. Inorg. Chem.
  • Radiotherapeutic Bandage Based on Electrospun Polyacrylonitrile Containing Holmium-166 Iron Garnet Nanoparticles for the Treatment of Skin Cancer. Imalka Munaweera, Daniel Levesque-Bishop, Yi Shi, Anthony J. Di Pasqua, and Kenneth J. Balkus, Jr.. ACS Appl. Mater. Interfaces: November 14, 2014